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Part IV: Perl as Culture > Security - Pg. 557

23 Security Whether you're dealing with a user sitting at the keyboard typing commands or someone sending information across the network, you need to be careful about the data coming into your programs, since the other person may, either mali- ciously or accidentally, send you data that will do more harm than good. Perl pro- vides a special security-checking mechanism called taint mode, whose purpose is